Lighting attachment for sewing machines and the like



D. L. FISH 1,772,934 LIGHTING ATTACHMENT FOR SEWING MACHINES AND THE LIKE Fild Aug. 1, 1928 galvanic; Dav/d 7 767:

F'atented Aug. 12, 1936 DAVID L. FISH, OF NEW HAVEN, CONNECTICUT LIGHTING ATTACHMENT FOR SEWING MACHINES AND THE LIKE Application filed. August 1, 1928.

The present invention relates to lighting attachment devices more particularly designed for use with sewing machines, especially factory machines which are usually located so that the general lighting system of the establishment cannot be well utilized for close work, therefore, each individual sewing machine is provided with a light. According to the present invention, the improved lighting device is designed so that itmay be readily applied to machines of standard make without requiring any alterations Whatsoever. Furthermore, the improved light is so designed that it may be quickly adjusted into several positions. In one position the lighting attachment is so located that it lies horizontally along the arm of the machine and the light is then thrown directly on the work at the point of operation under the head of the sewing machine, for example. In

another position the lighting device is elevated so that it may be shifted into a number of different radial positions. In all positions of the attachment device, the location of the same is such that the lamp and shade carried thereby cannot come in contact with any part of the machine. Besides the above feature of adjustability, the attachment device is so supported that the vibrations of the machine are not transmitted to the lamp carried by the attachment device and to attain the desired result, a cushioned or shock-absorbing device is incorporated in the construction of this attachment.

The invention will be hereinafter more fully described in detail with reference to the accompanying drawings, wherein- Figure 1 is a perspective view showing the lighting attachment secured in one lowered position so as to lie alongside the arm of a sewing machine;

Figure 2 is a perspective showing the lighting attachment devicein its elevated position;

Figure 3 is a detail plan view of part of the attachment device;

Figure 4 is a perspective view showing the cushioning or shock-absorbing device;

Figure 5 is a sectional View taken on line 50 55 of Figure 4c, and

Serial No. 296,714.

Figure 6 is a fragmentary view showing a part of the attachment device.

In accordance with the embodiment of the invention as illustrated in the accompanying drawings, the improved attachment device consists of a bracket member 1 composed preferably of a rod which is bent so as to form a substantially horizontal portion 2 at one end and an extended vertical portion 3 at the other end. An angularly disposed intermediate portion 4 and vertical portion 5 connect the two end portions tOgether, said horizontal portion 2 carrying a fiat plate 6 and said vertical portion 3 having a key 7 secured thereto and lying alongside thereof said flat plate 6 may form an integral part of the rod or as shown, the restricted neck 8 thereof is secured bya rivet in the bored-end of the horizontal member 2. The bracket member 1 is adapted to be attached to the arm of a sewing machine so as to lie, when in its lower position, horizontally along the side of the said arm. In sewing machines of standardized construction, spindle 9 for holding a spool of thread is provided and in instalhng the improved bracket, the plate 6 is mounted on said spindle through a perforation therein. Said plate 6 is comparatively thin so as not to interfere with the placing of the spool of threadon said spindle and said plate 6 is tapered toward one side so as to conform with the contour of the sewing machine and thus rest closely and firmly against the said arm. Sewing machines also usually have a plate 10 which covers an opening in the rear side of the arm and this plate is secured by a screw 11. This means is used to further support the bracket 1 through the medium of a plate 12 having the shouldered slotted end 13. This plate 12 is adjustably mounted on the portion 2 and is adapted to be secured to the arm by means of the screw 11. By this means of connection, the bracket 1 is rigidly secured to the arm of a sewing machine and with the adjustable means, said bracket can be determinately located.

The lighting attachment includes the usual electric lamp 14, reflector shade 15, socket 16 and tubular extension member 17. At the free end of said extension member there properly apart.

19 are passed. A sliding block 20 is mounted cnt lextensioniot the bracket 1 and oloc i -0 has a key-hole therein to fit the rod 3 and the key 7 thereon in a manner so as to prevent any turning of said block on its support when in its lowered position and in which position it is held by the thumb screw 21. The tubular extension member 17 passes through said block in a manner so that it can slide therein permit of adjustment and to hold said extension 17 carrying the lamp and shade, in its adjusted position, the thumb screw 22 engages the groove 23 in said tubular extension so as to prevent turning thereof within the block.

It is a known fact that considerable vibra tion exists when a sewing machine is in operation and to eliminate the bad effects of this vibration upon the lamp carried by the lighting attachment hereinbetore described, the block 20 forming a part thereof is constructed to operate as a shock-absorber. To accomplish this purpose, the said block is built up of a number of parts including two sections 2% and 25. The extension 17 passes oi the section 2% and the time '1 portion 3 of the bracket 1 passes vertically to rhroi ;h the other section 25. The two secions 2 1 and 25 are separated from one another by cushioning means so that vibration cannot be transmitted from the bracket 1 to the extension 17 and the lamp and other rr ts "ea-vied thor joy. To t 1e cushioning effect, the sections 2% and 25 are spaced apart and are held together by plates 26 and. 27 which are secured by rivets 28. These rivets have shoulders 29 to space the plates 26-27 An outer sleeve 30, preferably roinn 'sed oi rnbl :r tubing, surrounds the rivet 28. Padding 31 consisting preferieet rubber interposed between the i: "if I )1 said plates 26-27 and through this means any vibration between the point of support of the bracket and the lamp can only be transmitted through this cushioning or shoclnabsorbing device; urther to'prevent transmission of shock, springs or spring washers 32 and 33 are employed to provide a cushioning effect between the movable parts of the entire lighting fixture.

In Figure 1 the improved attachment device is shown in one of its lowered positions -izontally and substantially para .ei w'varm of the sewing machine with the lamp thereon in close proximity with the work. In this position, it will be noted that the lighting attachment is held rigidly so that the lighting elements are not cent with the sewing machine. The lamp can be pushedbackward or brought forward the extent allowed according to the length of the extension 17. The lamp may further be moved into hi her or lower positions by means of the block 20 sliding on the vertical portion 3 but in this position the key 7 prevents any turning of the block on its support. When it is desired to move the lamp into difierent radial positions the fixture is raised so that the block is clear of the key 7 and in which position the block may be adjusted into the desired radial position resting on the end of said key and held in the adjusted position by the thumb screw 21.

Various modifications may be made in carrying out the details of the invention hereinbetore described but it is to be understood that any modification coming fairly within the terms of the appended claims shall be covered thereby.

I claim- 1. A. device of the class described having a SUPPOI'IHU" bracket i-iounted on a base,

means compi g ock ree to slide vertically on said ..--t for adpistably mounting a lamp on said bracket, said means being arranged to self-retentively retain said lamp in a predetermined iixed horizontal and parallel position relatively to said base when in its lowered or intern ediatc positions and when in its highest position only, said lamp movable into radial positions said base.

sliding block mounted on said bracket, an extension member idably mounted in said block carrying a lamp, means for retaining said block in pro-determined fixed vertical positions on 1'; ti bracket and means whereby sell lamp is retained in a determined horizontal and parallel position or positions rela' tirely to said arm.

ii. attachment for sewing machines coinp ing bracket directly secured to the arm of the wins, .nachine by members arranged "o be sec-tired to parts of said maci a sll ling block mounted on said bracket a lamp, means for retaining said larnpin a predeterminedpos on relatively to said arm and said bh -k being held against rotation on s :et by means of a key which is out of engagunent with said block when the lamp i l which said block turns freely on said rod portion and said block being constructed and arranged to operate as a shock-absorber between the bracket and said lamp.

5. A lighting attachment for sewing machines comprising a bracket directly mounted on the arm of the machine and having a Vertical portion; a block tree to slide mounted on said vertical portion; a sliding member mounted within said block, said member carrying a lamp and a reflector therefor; said block member being adapted to slide freely on said vertical portion and having its upper and lower sides composed of resilient plates extendin outwardly beyond said block member, retaining plates forming part of said block; means for securing said plates together; means for supporting a light yieldingly and with limited movement supported and centrally located between said retaining plates and said resilient plates whereby said block will operate as ashock absorber between said bracket and the lamp indirectly carried thereby.

6. In a lighting attachment as described, a bracket having a vertical rod portion at one end located in the rear of the sewing machine and a horizontal portion at the other end, said vertical portion terminating at a point i i, above the horizontal plane of the arm of the sewing machine, intermediate horizontal and angularly disposed connecting portions, a projection alongside of said vertical portion having its upper termination at a point below the upper termination of said vertical portion and above the horizontal plane of the arm or" the sewing machine thereby leaving the highest portion of said vertical portion free of said projection; a block having a keyhole aperture adapted to engage said projection and to slide freely on said vertical portion and to be guided by said projection parallel to the arm of the sewing machine; said horizontal portion having a plate or enlarged end thereof adapted to fit on the spool spindle on the arm of the sewing machine; an additional connecting plate adjustably mounted on said bracket adapted to be secured to the arm of the sewing machine; a

i tubular member carrying a lamp slidably mounted on said block and arranged to support the lamp in a horizontal and parallel position relatively to said arm of the sewing machine; said lamp and said block when at the highest position on said Vertical portion being free of engagement with said projection and being adapted to be adjusted radially above said horizontal plane of the sew ing machine arm.

Signed at New Haven, county of New Haven, State of Connecticut, this 27th day of July, 1928.

DAVID L. FISH. 

